Tube



FIG. 1 is a perspective view of a tube of the present invention.

FIG. 2 is a right side elevational view of FIG. 1, the left side elevational view is a mirror image;

FIG. 3 is a front end elevational view of the tube of FIG. 1; and,

FIG. 4 is a rear elevational view drawn in broken lines.

The broken lines in FIGS. 1, 2, and 4 are for illustrative purposes only and forms no part of the claimed design. 

We claim, the ornamental design for the tube, as shown and described. 